The leaves are curling because that is way too much light for them, they curl in their own natural way to get away from the light. I wouldn't keep that light on them for any extended length of time. A lower wattage light is definitely needed! How many hrs on a 24 hr schedule are you keeping the light on?
Also you are watering way too often. I'm speaking all from experience due to all the seedlings I've killed!!
I'd put your pH balenced water in a jug, for one, misting them doesn't get the water down to the roots where it needs to be. When you first plant your seedling, you wanna go ahead and dribble juuust enough water to where it's dripping out the bottom of the pot. After that, wait!!! Wait a few days, even if it's looking dry on the top the dirt down underneath is still wet (I got a pH meter to help with that!! The gauge will tell you how moist the soil is)
When it's getting dry that's when you then again dribble a bit more water into it. Remember!! Seedlings are super sensitive so every bit of water and light it gets counts!!
Hope I helped